MadGraph5_aMC@NLO

Total decay width of CP even heavy higgs in 2HDM

Asked by Sahabub Jahedi

Dear Experts,
                           I would like to calculate the total decay width (both on shell and off shell) of CP even heavy Higgs within 2HDM through Madgraph. How, I can do that?

Thank you.

Best Regards,
Sahabub Jahedi

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Olivier Mattelaer (olivier-mattelaer) said : 		#1

You can use the auto width option:
(see 1402.1178)

or you can do it by hand via something like (but then this is only two body)
generate X > all all
output
launch

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Sahabub Jahedi (sabuj27) said : 		#2

Thank you so much for your reply. I have followed your suggestion. This gives only 1 to 2 processes and on-shell decays. Is there any way to incorporate off-shell decay as well as 3 body decays?

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Olivier Mattelaer (olivier-mattelaer) said : 		#3

Then you need to use the tool/procedure described in the 1402.1178 paper.

Cheers,

Olivier

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